JP3844625B2 - Ventilator filter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilator filter used to prevent dirt in a ventilator having a hood.
[0002]
[Prior art]
Conventionally, in a kitchen, a ventilator such as a ventilating fan is attached above a stove as means for removing air (oil smoke) containing oil generated during cooking. Therefore, in order to efficiently discharge oily smoke, it is often surrounded by a hood, and in order to prevent the ventilation fan from being contaminated, a net-like metal filter is often provided on the front surface of the ventilation fan. In such a ventilator, dirt that reaches the ventilation fan or the like can be prevented by the metal filter, but the metal filter itself or the inside of the hood is contaminated by oily smoke. Therefore, it is required to frequently clean these contaminated parts, but oil stains attached to the inside of metal filters and hoods are very difficult to remove, and it is difficult to completely remove even using detergent. . In addition, cleaning the inside of the hood has poor workability, requiring labor and difficulty. In order to reduce the cleaning work in such a ventilator, various methods have been studied and proposed.
[0003]
The method disclosed in Japanese Utility Model Publication No. 7-8017 is a metal plate filter and a ventilation fan located in the back of the metal plate filter by stacking a sheet-like filter on the metal plate filter arranged inside the range hood. It prevents oil from adhering.
[0004]
In addition, the method disclosed in Japanese Patent Application Laid-Open No. 8-219516 is a method in which a nonwoven fabric is sandwiched between a pair of attachments, and the attachments are attached to a hood of a ventilation fan with a magnet. In this method, a nonwoven fabric is applied so as to cover the opening of the ventilation fan hood, and the magnets on both ends of the nonwoven fabric are attached to the outside or inside side of the ventilation fan hood to prevent the inside of the ventilation fan hood from being contaminated with oily smoke. To do.
[0005]
In addition, in Japanese Patent Application Laid-Open No. 10-170046, the present applicant has provided a protrusion or a double-sided adhesive tape on the surface of a stretchable pipe having a tension effect, and uses these fixing forces to attach the filter member to the pipe. A method is proposed in which it is fixed to the surface and stretched at the entrance of the opening of a hood attached to a ventilation fan.
[0006]
[Problems to be solved by the invention]
In the method of No. 7-8017, since a sheet-like filter is arranged on the metal plate filter, it is necessary to remove the metal plate filter every time an old filter is replaced.
[0007]
In addition, since a fine sheet-like filter is closely adhered to the net-like metal plate filter, the air flow becomes worse and the exhaust ability of the ventilation fan is reduced.
[0008]
Furthermore, since the sheet filter is arranged on the metal plate filter, the upstream side (front side) of the flow of oil smoke from the position of the sheet filter is contaminated in the same way as before, so the oil adhering to the inside of the hood The need for cleaning etc. cannot be solved.
[0009]
On the other hand, in the method of Japanese Patent Application Laid-Open No. 8-219516, a magnet is used for attachment, but the magnet has a drawback that it is easily displaced in the crossing direction of the attachment surface and its fixing force is weak. Therefore, in order to attach the filter so as to hold it, the tension is easily loosened by the weight, and it is difficult to stretch the filter so as to cover the opening exactly. Accordingly, there is a problem that a gap is formed between the opening and the oil infiltrates into the hood from the gap, which easily causes contamination inside the hood.
[0010]
In addition, if the air is indirect for a long time, the filter becomes heavier and oily, and the oil penetrates into the interface between the magnet and the mounting surface. It becomes easy to produce a clearance gap between opening parts. For this reason, there is still a problem in that oil smoke enters the inside of the hood and maintains antifouling properties for a long period of time.
[0011]
Furthermore, although the hood is made of many metal materials, aluminum, stainless steel, etc., which cannot use magnets, are often used. Therefore, the method using a magnet has a problem that the material of the hood to be attached is limited.
[0012]
Further, in the method of Japanese Patent Application Laid-Open No. 10-170046 of the present applicant, since a protrusion, a double-sided adhesive tape, or a hook-and-loop fastener is provided on the pipe itself as means for fixing the filter to the pipe, the filter is replaced. In addition, a part of the old filter tends to remain on the fixed surface, which may hinder the installation of the new filter.
[0013]
In addition, when used for a long period of time, the oil component permeates the surface of the double-sided adhesive tape or the like provided on the pipe, and there is a problem that the fixing force to the filter is reduced.
[0014]
Furthermore, providing the above-described protrusions on the pipe increases the manufacturing cost because the number of processes and the number of parts increase in manufacturing.
[0015]
The present invention has been invented in view of the above-mentioned problems, and is a filter attached to a ventilation device having a hood, which significantly improves the cleaning operation by preventing contamination of the entire interior of the hood. To provide a low-priced filter for a ventilator that is very easy to install, can maintain its antifouling effect even when used for a long period of time, and does not deteriorate in performance even when the filter is replaced many times. It is intended.
[0016]
Claim 1 is a filter attached to a ventilator having a hood having an opposing wall surface surrounding an opening, a filter member made of a flame-retardant sheet material, and an acceptor portion provided at an end of the sheet material And a stick member which is provided on the acceptor part so as to be freely attached and detached, and is stretched on the opposing wall surface in the vicinity of the opening of the hood. An end portion in the width direction of the filter member is folded to form a folded portion, and the stick member is disposed so as to stretch on the wall surface through the folded portion, The filter member is stretched through the stick member, and is arranged so as to cover the opening of the hood.
[0017]
In this means, the filter member is stretched so as to cover the opening of the hood by sticking the stick member to the opposing wall surface in the vicinity of the opening of the hood. As a result, the oil component entering the hood is blocked at the entrance of the hood, and the entire interior of the hood is prevented from being contaminated.
In addition, the stick member having a tension effect is not easily displaced in the direction intersecting the tension direction, and the tension force does not decrease even when indirect for a long time in oil-containing air. The property does not deteriorate.
The stick member can be used regardless of the material of the hood.
Further, the work of attaching the stick member in the vicinity of the opening of the hood does not require an unreasonable posture, and can be attached and replaced very easily without using a specialist. Furthermore, it can be attached to the existing ventilation device without any additional processing.
Furthermore, since the filter member is made of a flame retardant sheet material, it does not burn even if a fire occurs.
[0018]
According to a second aspect of the present invention, the filter member is substantially rectangular and has an acceptor portion on two opposing sides.
[0019]
With this means, the shape of the hood opening can be easily accommodated, and the filter member is stretched on the two opposite sides. Therefore, the mounting work is easy to perform, and it is stretched without causing any slack or gaps in accordance with the opening. easy.
[0020]
According to a third aspect of the present invention, the acceptor portion is a cylindrical portion attached to the end portion of the sheet material, and is formed so that the stick member can be inserted and removed freely.
[0021]
With this means, attachment and removal of the stick member and the filter member can be freely performed only by being inserted through the cylindrical portion.
Further, when removing the old filter member, the stick member can be used repeatedly any number of times because the residue of the old filter member does not adhere to the stick member.
Moreover, since the stick member is covered with the cylindrical part, it is not contaminated by oil.
Furthermore, the cylindrical portion can be easily formed, and the cost can be reduced.
[0022]
Claims Inventions 1 to 3 The filter member is folded so that the end in the width direction is folded to form a folded portion, and the stick member is arranged so as to stretch against the wall surface via the folded portion.
[0023]
This By Even if the ventilator exhausts and pressure is generated to draw the filter member, the folded portion is in contact with the wall surface, so that no gap is formed between the wall surface and the wall surface. In addition, by adjusting the amount of folding the end portion, fine adjustment according to the width of the opening can be performed.
[0024]
Embodiment
A basic embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a state in which the embodiment (1) is attached to a hood of a ventilation device, FIG. 2 is a perspective view of the embodiment (1), and FIGS. 3 and 4 are views of the embodiment (1) as a hood. FIG. 5 is a perspective view of a portion cut along line AA in FIG. 4.
[0025]
In the ventilation device filter 10 according to the embodiment (1), cylindrical portions 12 and 12 are provided as acceptor portions 18 on two opposing sides of a filter member 11 that is a substantially rectangular sheet material. Then, stick members 14 and 14 are inserted through the cylindrical portions 12 and 12. Since the stick member 14 has a tension effect, the position is firmly held together with the filter member 11 when the stick member 14 is stretched between the opposing wall surfaces. Furthermore, since it can be expanded and contracted in the longitudinal direction, it can be freely adjusted to a length at which an appropriate tension force can be obtained. Moreover, since this stick member 14 is only inserted in the cylindrical part 12, attachment and removal are performed freely. When the filter member 11 is contaminated with oil, the stick member 14 is extracted from the cylindrical portion 12 and replaced with a new filter member 11.
[0026]
On the other hand, the ventilator 200 is attached to forcibly exhaust dirty air, odor and the like to the outside, and a ventilation fan (not shown) or the like is disposed inside. In general, a hood 21 is provided to be attached above a stove or the like of a kitchen and efficiently collect and exhaust oil.
The hood 21 has side plates 25 and 26 as opposing wall surfaces. Then, both ends of the remaining width of the filter member 11 are folded back in accordance with the distance between the side plates 25 and 26, that is, the width of the opening 22, and folded portions 17 and 17 are formed. The stick members 14, 14 are arranged at positions 25 a and 26 a, 25 b and 26 b near the opening 22 at the lower end of the hood 21. At this time, the stick members 14 and 14 are stretched between the wall surfaces via the folded portions 17 and 17. Thereby, the filter member 11 is stretched so as to cover the opening 22 on the inside without a gap. In this way, the filter member 11 is arranged at the entrance of the hood 21 without any gaps, so that the entry of contaminants into the hood 21 is completely prevented.
[0027]
Since the filter member 11 is made of a non-woven fabric having an appropriate texture, the filter member 11 collects only contaminating components from the oil smoke forced to be exhausted by the ventilation device 200 and prevents the exhaust of air from which the contaminating components have been removed. There is nothing.
Moreover, even if the filter member 11 receives the force sucked upward by the ventilation device 200, no gap is generated between the filter member 11 and the wall surface because the folded portion 17 is in contact with the wall surface.
Furthermore, the nonwoven fabric used for the filter member 11 has flame retardancy in consideration of safety. The term “flame retardant” as used herein includes not only general fire-resistant properties but also self-extinguishing properties that naturally extinguish even when a fire comes on. Thereby, even if it is attached above the stove, it can be used safely.
[0028]
In the embodiment (1), the cylindrical portion 12 provided as the acceptor portion 18 is formed by folding back the end portion 13 of the filter member 11 as shown in FIG. Has been.
The stick member 14 is proposed by the present applicant in Utility Model No. 2532328, and is composed of a hollow pipe 15 and outer pipes 16 and 16 at both ends thereof. As a means, a coiled spring (not shown) is arranged. The stick member 14 has a tensile effect with respect to the longitudinal direction by the biasing force of the spring, and by rotating the hollow pipe 15, the outer pipes 16, 16 disposed at both ends are simultaneously moved in the opposite direction by the same amount. It can move and adjust the expansion and contraction freely.
[0029]
The acceptor portion 18 is not limited to the method of forming the cylindrical portion 12 shown in FIG. 2, and a band-shaped member is sewn so that the stick member 14 can be inserted therein, or formed in advance. The tube body may be sewn near the end 13.
Moreover, the shape of the stick member 14 may be a cylindrical shape or a solid shape, and the structure for obtaining the stretching effect and the stretchability is not limited to the above-described structure.
[0030]
The ventilator filter 10 according to the embodiment (1) of the present invention configured as described above has a feature that the same item can be used for different sizes of ventilators. A method for changing the size of the ventilator filter 10 will be described later. First, the operation of attaching the ventilator filter 10 having a suitable size to the ventilator 200 will be described with reference to FIGS. 3 and 4.
[0031]
First, as shown in FIG. 3, the stick member 14 is inserted into one cylindrical portion 12 of the filter member 11.
Next, one folded portion 17 is formed in accordance with the width of the filter member 11 in accordance with the width of the opening 22, and the stick member 14 is applied so as to contact the side plate 25 a through the folded portion 17.
Next, the outer pipe 16 of the stick member 14 is pressed and shrunk in accordance with the width of the opening 22, and disposed so as to contact the side plate 26 a via the other folded portion 17.
Next, the stick member 14 is inserted into the other cylindrical portion 12.
Next, as shown in FIG. 4, the other stick member 14 is also stretched between the side plates 25b and 26b via the folded portions 17 and 17 in the same manner as the previously arranged stick member 14. Be placed. Thereby, the inside of the opening 22 is covered with the filter member 11.
The above-described mounting operation is an example, and can be freely mounted according to the convenience of the user.
When the tensioning of the ventilation device filter 10 is completed in this manner, as shown in FIG. 5, the stick member 14 surrounded by the cylindrical portion 12 is turned around the cross section along the line AA in FIG. 4. The filter member 11 is stretched so as to be in close contact with the inner side of the side plate 25.
[0032]
In the embodiment (1), the tension of the filter member 11 can be further increased even after the filter member 11 is stretched by the above-described operation. In this case, at least one of the stick members 14 is held and the filter member 11 is rotated so as to be wound toward the center side as indicated by an arrow in FIG. Since this is an operation of rotating the stick member 14 at the position as it is, the slack in the length (depth) L direction of the filter member 11 is removed, and the tension can be further increased.
Further, the stick member 14 used in the embodiment (1) has a feature that the stick member 14 can be extended by rotating the hollow pipe 15 even after being stretched. Thereby, the operation | movement which further raises the tension | tensile_strength with respect to the side plates 25 and 26 can also be added after tensioning.
[0033]
The ventilation device filter 10 attached by the above-described operation can be easily removed by a procedure reverse to that described above when the filter member 11 becomes dirty due to oil. The filter member 11 from which the stick member 14 has been removed from the cylindrical portion 12 is normally replaced with a new filter member 11, but can be reused depending on how the filter member 11 is soiled. For example, recently, a stove with three ports is often used. In this case, since the position of the filter member 11 corresponding to the position of the stove is intensively contaminated, the direction of the old filter member 11 is changed. By attaching the filter member 11, the filter member 11 can be reused, and dust can be reduced.
As described above, according to the embodiment (1) of the present invention, the cleaning of the inside of the hood 21 that has been troublesome and troublesome for the conventional user only by attaching and replacing the filter is very simple. Can be made unnecessary.
[0034]
Next, a description will be given of a case where the same ventilation device filter 10 as that in FIG. FIG. 6: has shown the perspective view of the state which attached Embodiment (1) to the ventilator from which width differs.
[0035]
The inner dimension of the ventilator 201 shown in FIG. 6 is narrower by Δw compared to the width W of the ventilator 200 of FIG. 4, and has a width dimension of W−Δw. When the same ventilation device filter 10 as in FIG. 4 is attached to such a narrow ventilation device, the width of the filter member 11 is cut in advance in accordance with the width W−Δw of the ventilation device 201. Since the filter member 11 is made of non-woven fabric, it can be easily cut with scissors or the like. At this time, the width of the filter member 11 is cut to be about 6 cm (not limited to this) wider than the width W−Δw of the opening 22 in consideration of forming the folded portions 17 at both ends. Is desirable.
Moreover, since the stick member 14 can be expanded and contracted freely, it can be freely adjusted according to the ventilation device 201.
By matching the filter member 11 and the stick member 14 to the width of the ventilation device 201 in advance, the filter member 11 and the stick member 14 can be stretched without gaps in the same procedure as in FIG.
Thus, if Embodiment (1) of this invention is used, since the width | variety of the filter member 11 can be easily cut | disconnected and adjusted and the stick member 14 is elastic, according to the width | variety of the ventilation apparatus 201, The width of the filter member 11 can be easily adjusted.
[0036]
Next, a case where the ventilation device filter 10 same as that in FIG. 4 is used and the length (depth) of the opening is stretched at different positions will be described. FIG. 7 is a perspective view showing an operation of changing the length (depth) of the embodiment (1).
[0037]
The inner dimension of the ventilator 202 in FIG. 7 is narrower by Δl compared to the length (depth) L of the ventilator 200 in FIG. 4, and has a length (depth) dimension of L−Δl. When the same ventilator filter 10 as in FIG. 4 is attached to the ventilator having such a short length (depth), the stick member inserted into the tubular portion 12 with the filter member 11 for Δl to be shortened in advance. 14 is wound around as indicated by an arrow and placed between 25 and 26 of the side plate. Further, FIG. 7 shows the operation of winding on the front stick member 14, but it goes without saying that the operation may be performed on both stick members 14.
Thus, if Embodiment (1) of this invention is used, since the filter member 11 can change the winding length freely, according to the length (depth) dimension of the ventilation apparatus 202, the filter member 11 of FIG. The length (depth) can be easily adjusted.
[0038]
Next, examples in which various methods of tensioning can be performed according to the shape of the ventilation device will be described. FIG. 8 shows an example in which the embodiment (1) is stretched obliquely, and FIG. 9 shows an example in which the direction of the stick member in the embodiment (1) is changed.
[0039]
Some ventilators may have built-in lighting to ensure brightness near the stove. FIG. 8 shows an example in which the lighting 24 is arranged on the back side of the ventilating device 203 as one example. Show.
In order to prevent dirt from entering the inside of the hood, it is desirable to cover the entire surface of the opening 22. However, some users may desire to expose the illumination 24. Even in such a case, if the embodiment (1) of the present invention is used, the filter member 11 can be stretched diagonally, so that the portion of the illumination 24 is exposed and the inside of the hood 21 is not contaminated as much as possible. Can be. Although FIG. 8 shows an example in which the illumination 24 is built in the back side, the position of the illumination and the like vary depending on the structure of the ventilator, and any position can be dealt with.
As described above, when the embodiment (1) of the present invention is used, it is possible to apply it obliquely according to the user's request, and it can be adapted to the internal structure of the ventilation device 203.
[0040]
Further, depending on the ventilator, the shape may be greatly deformed, and FIG. 9 shows an example of the ventilator 204 having a long length (depth) as one of them.
In the above description, the embodiment (1) of the present invention has been described with an example in which the stick member 14 is disposed so as to stretch in the direction of the width of the ventilator, but the ventilator 204 as shown in FIG. The stick member may be arranged so as to stretch in the length (depth) direction according to the shape, ease of attachment, or the like.
Also, even if the shape of the opening is not necessarily rectangular, for example a trapezoidal ventilator, changing the size adjustment in the width direction and length (depth) direction makes it easy. It is possible to adapt.
Further, depending on the structure of the ventilation device, the stick member 14 is disposed outside the opening 22 using the adjacent wall surface outside the hood 21, and the ventilation device filter 10 is attached so as to cover the opening 22. Also good.
As described above, when the embodiment (1) of the present invention is used, it can be attached to adapt to the shapes and structures of various ventilation devices.
[0041]
As described above, when the embodiment (1) of the present invention is used, even if the width W and length (depth) L of the ventilator are different, the size can be very easily obtained using the same ventilator filter 10. Can be adjusted and installed. Therefore, if the size of the ventilator filter 10 of the present invention is adjusted in advance to a large standard size ventilator used for general purposes, it can be used for almost all sizes of ventilators. it can.
Of course, several types of ventilator filters 10 may be prepared in advance and used more widely corresponding to the size of the ventilator.
[0042]
Moreover, although the above-mentioned description is demonstrated as a filter for ventilation apparatuses attached above a stove, you may attach not only to the ventilation apparatus attached to a kitchen but to the ventilation apparatus used for another use.
[0043]
Next, Embodiment (2) of this invention is demonstrated based on figures. FIG. 10 is a perspective view of the embodiment (2). Since the difference between the embodiment (2) and the embodiment (1) is the structure of the stick member, the same description as the embodiment (1) is omitted.
[0044]
FIG. 10 shows a state in which a thin plate-like stick member 19 is inserted into the cylindrical portion 14 provided as the acceptor portion 18 on one side of the substantially rectangular filter member 11. The stick member 19 bends and extends in the longitudinal direction, and has a tensile force in the extending direction when in the bent state.
If the stick member 19 is placed between opposing wall surfaces in a state where a force is applied so that the stick member 19 bends upward, the filter member 11 can be stretched by a tension force against the wall surfaces. By bending upward, there is no fear of falling even if force is applied downward. This stretched filter member 11 can prevent the inside of the ventilation device from being contaminated as in the case of the embodiment (1). Further, the stick member 19 can be adjusted in the longitudinal direction by changing the angle of bending. Moreover, by changing the amount of the folded portion 17 of the filter member 11 or cutting or winding the filter member 11 in the same manner as in the embodiment (1), the size can be adjusted according to the shape of various ventilation devices. Can be adjusted.
[0045]
【The invention's effect】
As described above in detail, the filter for a ventilator of the present invention is a filter attached to a ventilator having a hood having an opposing wall surface surrounding an opening, a filter member made of a flame-retardant sheet material, An acceptor portion provided at an end portion of the sheet material, and a stick member that is detachably attached to the acceptor portion and is provided to be stretched on an opposing wall surface in the vicinity of the opening of the hood. It is characterized by being arranged so as to cover the opening of the hood by stretching the filter member, thereby preventing the entire inside of the ventilator from becoming dirty and greatly reducing the cleaning work .
[0046]
Also, it is very easy to attach to a ventilator or replace an old filter member.
[0047]
Furthermore, since the size can be easily adjusted, it can be attached to almost any ventilation device, and a low-cost ventilation device filter can be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view of a state in which Embodiment (1) is attached to a hood of a ventilation device.
FIG. 2 is a perspective view of the embodiment (1).
FIG. 3 is a perspective view showing an operation of attaching the embodiment (1) to a hood.
FIG. 4 is a perspective view showing an operation of attaching the embodiment (1) to a hood.
FIG. 5 is a perspective view of a portion cut along line AA in FIG. 4;
FIG. 6 is a perspective view of a state in which the embodiment (1) is attached to a ventilator having a different width.
FIG. 7 is a perspective view showing an operation of changing the length (depth) of the embodiment (1).
FIG. 8 is a perspective view showing an example in which the embodiment (1) is obliquely stretched.
FIG. 9 is a perspective view showing an example in which the stick member of the embodiment (1) is stretched by changing its direction.
FIG. 10 is a perspective view showing an embodiment (2) of the present invention.
[Explanation of symbols]
10 Ventilation fan filter
11 Filter members
12 cylindrical part
13 Edge
14, 19 Stick member
15 Hollow pipe
16 Outer pipe
17 Return section
18 Acceptor section
200-204 Ventilator
21 Food
22 opening
24 lighting
25, 26 Side plate

Claims (3)

A filter attached to a ventilator having a hood having an opposing wall surface surrounding an opening, a filter member made of a flame-retardant sheet material, an acceptor unit provided at an end of the sheet material, and the acceptor unit And a stick member provided so as to be detachably mounted on the opposing wall surface in the vicinity of the opening of the hood, and a folded portion is formed by folding back the end portion in the width direction of the filter member. A filter for a ventilator characterized in that the stick member is disposed so as to stretch on the wall surface via the hood, and is arranged so as to cover the opening of the hood by stretching the filter member via the stick member. .   The filter for a ventilator according to claim 1, wherein the filter member is substantially rectangular and has an acceptor portion on two opposing sides.   The ventilator filter according to claim 1 or 2, wherein the acceptor portion is a cylindrical portion attached to an end portion of the sheet material so that the stick member can be inserted and removed freely.

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